Neutron Matter Wave Quantum Optics

Testing of quantum phase in matter wave optics

Various phase concepts may be treated as special cases of the maximum likelihood estimation. For example the discrete Fourier estimation that actually coincides with the operational phase of Noh, Fougères and Mandel is obtained for continuous Gaussian signals with phase modulated mean. Since signals in quantum theory are discrete, a prediction different from that given by the Gaussian hypothesi...

From quantum turbulence to statistical atom optics: new perspectives in speckle matter wave

P. E. S. Tavares, ∗ A. R. Fritsch, G. D. Telles, F. Impens, R. Kaiser, and V. S. Bagnato Instituto de F́ısica de São Carlos, Universidade de São Paulo, Caixa Postal 369, 13560-970, São Carlos, SP, Brazil Instituto de F́ısica, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, 21941-972, Rio de Janeiro, RJ, Brazil Université Nice Sophia Antipolis, Institut Non-Linéaire de Nice, CNRS UMR 7...

Nonlinear Atom Optics: Multi-wave mixing with matter waves

Enhanced quantum reflection of matter-wave solitons

– Matter-wave bright solitons are predicted to reflect from a purely attractive potential well although they are macroscopic objects with classical particle-like properties. The non-classical reflection occurs at small velocities and a pronounced switching to almost perfect transmission above a critical velocity is found, caused by nonlinear mean-field interactions. Full numerical results from ...

Quantum Effects in Matter-Wave Diffraction

Advances in micro-technology of the last years have made it possible to carry optics textbooks experiments over to atomic and molecular beams, such as diffraction by a double slit or transmission grating. The usual wave-optical approach gives a good qualitative description of these experiments. However, small deviations therefrom and sophisticated quantum mechanics yield new surprising insights...